136900 (1998 HL49)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6367117241 ± 8.56e-09
Semi-major axis (a)1.7474083419 AU ± 7.92e-10
Inclination (i)10.97962249° ± 1.81e-06
Long. of Asc. Node (Ω)205.93934994° ± 7.13e-06
Arg. of Perihelion (ω)239.26481064° ± 7.17e-06
Mean Anomaly (M)58.90437048° ± 2.72e-06
Mean Motion (n)0.4266980608°/day ± 2.90e-10
Perihelion dist (q)0.63481296 AU ± 1.50e-08
Aphelion dist (Q)2.86000372 AU ± 1.50e-08
Orbital Period2.30989164 yr ± 1.57e-09
Physical Parameters
H (abs. magnitude)17.39
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.235″
Uncertainty0
Orbit TypeApollo
MOID0.084573 AU
Observations Used833
Oppositions14
Arc Total1998-2023
First Observation Used1998-04-30
Last Observation Used2023-06-07
Observations (895)
Date Type RA Dec Mag Band Observatory
2021-02-11 15:44:04 C 16 00 36.066 -22 54 32.83 U F51
2021-03-20 14:50:11 C 16 11 47.711 -18 59 53.86 U F52
2021-03-20 14:58:36 C 16 11 47.475 -18 59 50.52 U F52
2021-03-20 15:01:23 C 16 11 47.383 -18 59 49.38 U F52
2021-03-20 15:06:56 C 16 11 47.238 -18 59 47.07 U F52
2021-03-20 15:09:43 C 16 11 47.152 -18 59 46.01 U F52
2021-03-20 15:15:17 C 16 11 46.987 -18 59 43.81 U F52
2021-03-20 15:18:04 C 16 11 46.911 -18 59 42.64 U F52
2021-04-08 13:18:57 C 15 50 45.467 -15 27 54.44 U F51
2021-04-08 13:37:06 C 15 50 44.249 -15 27 44.83 U F51
2021-04-08 13:55:19 C 15 50 43.028 -15 27 35.11 U F51
2021-04-08 14:13:33 C 15 50 41.802 -15 27 25.40 U F51
2021-04-10 10:15:11 C 15 47 47.76 -15 03 54.7 V G96
2021-04-10 10:22:36 C 15 47 47.21 -15 03 50.8 V G96
2021-04-10 10:29:59 C 15 47 46.68 -15 03 46.7 V G96
2021-04-10 10:37:21 C 15 47 46.19 -15 03 42.3 V G96
2021-04-11 10:41:27 C 15 46 08.24 -14 50 38.9 V T08
2021-04-11 10:49:32 C 15 46 07.68 -14 50 34.4 V T08
2021-04-11 11:06:52 C 15 46 06.46 -14 50 25.0 V T08
2021-04-11 11:11:32 C 15 46 06.10 -14 50 22.4 V T08
2021-04-13 13:26:33 C 15 42 34.089 -14 22 51.10 U F51
2021-04-13 13:42:32 C 15 42 32.907 -14 22 42.24 U F51
2021-04-13 13:58:28 C 15 42 31.727 -14 22 33.42 U F51
2021-04-15 11:49:18 C 15 39 12.189 -13 57 08.20 U F52
2021-04-15 12:10:32 C 15 39 10.565 -13 56 56.40 U F52
2021-04-15 12:31:48 C 15 39 08.943 -13 56 44.55 U F52
2021-04-15 12:53:07 C 15 39 07.321 -13 56 32.55 U F52
2021-04-22 10:36:49 C 15 26 27.30 -12 23 37.1 V T05
2021-04-22 10:41:27 C 15 26 26.94 -12 23 34.3 V T05
2021-04-22 10:45:27 C 15 26 26.58 -12 23 31.8 V T05
2021-04-22 10:53:24 C 15 26 25.96 -12 23 27.7 V T05
2021-04-23 10:18:14 C 15 24 35.729 -12 10 22.15 U F52
2021-04-23 10:35:00 C 15 24 34.355 -12 10 12.87 U F52
2021-04-23 10:51:43 C 15 24 33.018 -12 10 03.74 U F52
2021-04-23 11:08:31 C 15 24 31.640 -12 09 54.29 U F52
2021-05-01 09:39:32 C 15 09 34.04 -10 26 28.0 V G96
2021-05-01 09:47:31 C 15 09 33.39 -10 26 24.0 V G96
2021-05-01 09:55:31 C 15 09 32.77 -10 26 19.8 V G96
2021-05-01 10:03:31 C 15 09 32.15 -10 26 15.3 V G96
2021-05-01 15:28:54 C 15 09 07.37 -10 23 26.6 q D29
2021-05-01 16:09:37 C 15 09 04.17 -10 23 05.6 q D29
2021-05-03 10:05:15 C 15 05 51.328 -10 01 29.54 U F51
2021-05-03 10:20:12 C 15 05 50.154 -10 01 21.96 U F51
2021-05-03 10:35:10 C 15 05 48.979 -10 01 14.33 U F51
2021-05-03 10:50:06 C 15 05 47.808 -10 01 06.81 U F51
2021-05-04 09:46:54 C 15 04 03.32 -09 49 35.2 V 703
2021-05-04 09:53:53 C 15 04 02.79 -09 49 31.2 V 703
2021-05-04 10:00:51 C 15 04 02.25 -09 49 28.0 V 703
2021-05-04 10:07:51 C 15 04 01.71 -09 49 24.0 V 703
2021-05-05 15:27:31 C 15 01 50.39 -09 34 54.0 q D29